This is the most labor-intensive way to put references into EndNote, and the way most prone to error. Use this method as a last resort, if you can't find your reference(s) in a database like MEDLINE, or the National Library of Medicine's catalog for books or book chapters. (You would just need to get the record for the book and modify your EndNote record to reflect a chapter of that book).
Enter data:
Names
Author names must be entered one per line e.g. Smith, J.T. OR John Tom Smith
Put a period or space between initials. Try to be consistent with other references in your EndNote library.
End corporate names with a comma, e.g. U.S. Department of Agriculture,
Use ? for unknown dates
Select Save, or close the record.
The following video demonstrates how to manually enter records into your EndNote library. Video does not have sound.